William p



(No Model.)

W. P. COUPER.

FOUNTAIN PEN.

Patented Apr. 26, 1898.

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UNITED STATES Amami miren.

IVILLIAM l). COUPER, OF WASI'IINGTON, DISTRICT OF COLUMBIA.

FOUNTAiN-PEN.

SPECIFICATION forming part 0f Letters Patent N0. 602,829, dated April26, ISQS. Application filed Gotober 29, 1897. Serial No. 656,805, (Nomodel.)

To @ZZ whom t may concern.-

Beit known that I, WILLIAM P. Course, a citizen of the United States,residing at Washington, in the District of Columbia, have inventedcertain new and useful Improvements in Fountain-Peu Filling Attachments;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings.

The object of my invention is to provide a fountain-pen with attachmentsfor filling the pen, which attachments form a permanent part of the pen;and I have sought to reduce such a construction to the utmost simplicitycompatible with convenient and efficient operation.

To this end my invention consists in the construction and combinationsset out in the claims.

In the drawings, Figure l is a longitudinal sectional view of afountain-pen containing my attachments. Fig. 2 is a side elevation ofthe feeder with the stem and piston formed thereon. Fig. 3 is a view ofthe cap or cover. Fig. 4C is a perspective view of the pistoncover andvalve'seat; and Fig. 5 is aperspective view of the piston, the stembeing broken near the piston.

The casingofj has a cylindrical bore, and its exterior tapers toward theends like a cigar. At the lower end the usual feeder-carrying sleeve his screwed into the case a, and its exterior surface conforms to that ofthe case d. The pen o and feeder d are held in the sleeve in the usualmanner, and the feeder 'has a capillary channel e for the ink. The upperend of the casing a is reduced and screw threaded for a short distanceat f, and beyond this reduced portion the casing is formed into a shortnozzle g. A nozzle-cap 7?. is threaded to screw on the upper end of thecasing until it rests against and closes the mouth of the nozzle. Ifdesired, a piece of rubber or cork may be placed in the nozzle-cap tomore securely close the nozzle.

A stem 1I is formed on or attached to the feeder d and extends to apoint near the upper end of the bore, where a piston j is formed on thestem. A piston-cap 7c is screwed on the piston j, and this capcompletely fills the bore.

A pocket Z l is formed partly in the piston cap and partly in thepiston, and a metal or rubber ball o of less diameter than the pocketoccupies the pocket and seats itself in the part of the pocket Zcontained in the pistoncap, so that it closes an opening m in the cap,thus forming a valve. Passages n and n in the piston allow the ink toiiow from the pocket Z Z to the bore of the casing.

A screw p may be used to prevent the piston from leaving the casing, butit could be dispensed with, if desired.

The usual cap q is used to cover the penpoint when not in use, and itmaybe slipped over the upper end of the casing for safe keeping whenwriting is being done.

The operation of my attachment is as follows: When it is desired to llthe reservoir with ink, the nozzle-cap h is unscrewed and thefeeder-sleeve b is removed. The nozzle g is then immersed in the ink,and the feeder is drawn up out of the casing, carrying with it thepiston, the ink following the piston under atmospheric pressure. Thismotion is continued until the piston comes in contact with the screw p.The nozzle is now withdrawn from the ink, still keeping the casingvertical, but the ink will not flow out of the nozzle, because thepiston and valve keep the casing airtight. The nozzle cap is now screwedto place, the casin g still remaining vertical. The nozzle being closed,the piston is slowly forced back to its original position, the valverising and allowing the ink to pass the piston through the passages inthe piston. The feeder-sleeve is now screwed to place and the pen isready for use.

It will be seen that with very little complication I have provided forfilling the pen without the use of any parts other than those containedin the fountain-pen.

What I claim as my invention, and desire to secure by Letters Patent,is-

l. A fountain-pen having the usual writing appliances at one end of thecasing and havingafilling-nozzle at the other end, and means for fillingthe reservoir through thenozzle, substantially, as described.

2. A fountain-pen having a pen-point and feeder at one end and having anozzle at the IOO n Opposite end, and having a piston Within the casingfor drawing the ink through the lling-nozzle and into the easing and aValve in the piston for permitting the ink to pass the piston,substantially, as described.

3. In e fountain-pen, the combination of a. easing having a, pen-pointand feeder at one end3 of a filling-nozzle at Jshe opposite end of theeasng, a stem secured to the feeder and extending substantially the length of the eesing, a. piston carried by the stem, and a. valve in thepiston and opening toward the stem, substantially, es described.

4:. In afountan-pen, the combination of a easing having: a. pen-pointand feeder at one end, of a lling-nozzle et the opposite end of thecasing, e stem secured to the feeder and extending substantially thelength of the easing, a piston carried by the stem, a, Valve in thepiston that opens toward the stem, a screw in `the casing to limit theoutward movement of the piston, substantially, as described.

5. In fountain-pen, lille combination of a casing having a pen-point andfeeder at one end, and having a. lling-nozzle at the opposite end, of astem formed on the feeder, e piston en the stem, e valve in the pistonthat opens toward Jalle stern, and a screw in the easing to limit Jsheoutward movement of the piston substani ally, as described.

In tesimony whereof I f x my signature in prese nce of two Wltness es.

' y I ALTA l P. COUPER.

Vifn.

IRVIN P. DISNEY, EDWIN J. PRINDLE.

